Concrete test block surface strength detection equipment

Abstract

The utility model discloses concrete test block surface strength detection equipment. The concrete test block surface strength detection equipment comprises a shell and a sliding rod, an impact piece is arranged in the shell, and the sliding rod penetrates through the first spring and then is connected with one end of the impact piece; the upper end of the shell is connected with the end cover, and a starting piece is arranged in the radial direction of the end cover; the starting piece comprises a shell, a tooth pin is arranged in the shell, the tooth pin is connected with a tooth groove in the sliding rod in a matched mode so that the sliding rod can be fixed to the shell, and the impact piece is promoted to impact the surface of the concrete test block through separation of the tooth pin and the tooth groove; the shell is further provided with a graduated scale, and the impact piece slides along the outer wall face of the graduated scale through a pointer. Therefore, when the equipment is used, the sliding rod is pulled firstly to enable the pointer to move to the preset scale value; the sliding rod is released, the impact piece impacts the surface of the test block, and a user can conveniently judge the structural strength of the test block according to the size of an impact pit formed in the surface of the test block.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete testing equipment, in particular to a concrete test block surface strength testing device. Background Art

[0002] There are many devices for concrete testing on the market, but there is a lack of equipment for concrete impact resistance testing. Concrete testing mostly uses concrete test blocks, and the impact resistance of concrete test blocks can very intuitively show the strength and hardness of concrete.

[0003] Through searching, it is found that the prior art with patent number CN109238882A can well complete the detection task of the surface of the concrete test block, but it has the following problems when used: first, the structure is complicated, which makes it inconvenient to use and maintain; second, the complicated structure leads to an increase in the overall weight of the equipment, so it is not easy to move and carry. Utility Model Content

[0004] The utility model aims to provide a concrete test block surface strength detection device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a concrete test block surface strength detection device, comprising a shell and a sliding rod sliding on the shell; an impact piece is also provided inside the shell, and the sliding rod is connected to one end of the impact piece after passing through a first spring; the upper end of the shell is connected to an end cover, and a starting piece is provided in the radial direction of the end cover; the starting piece comprises a shell, a tooth pin is provided inside the shell, and the tooth pin is adapted to be connected with a tooth groove provided on the sliding rod so as to fix the sliding rod on the shell; after the tooth pin is separated from the tooth groove, the sliding rod, under the action of the first spring, causes the impact piece to impact the surface of the concrete test block; a scale for displaying the pressure value after the first spring is compressed is also provided on the shell, and the impact piece slides along the outer wall surface of the scale through a pointer provided.

[0006] As a preferred technical solution of the utility model: a first sliding groove is further provided on the inner wall surface of the shell, and the tooth pin is slidably matched with the first sliding groove through a first sliding block.

[0007] As a preferred technical solution of the utility model: a second spring is further provided between the tooth pin and the housing.

[0008] As a preferred technical solution of the utility model: a stop surface is further provided on one end of the tooth pin facing the tooth groove, and a side of the tooth pin facing the housing is connected to a pull ring.

[0009] As a preferred technical solution of the utility model: the impact member includes a connecting portion and a striker movably mounted on the connecting portion.

[0010] As a preferred technical solution of the utility model: a side of the connecting portion away from the striker is slidably matched with a second sliding groove provided on the housing through a second sliding block.

[0011] As a preferred technical solution of the utility model: a handle is also provided on the side of the shell.

[0012] By adopting the above technical scheme, the beneficial effects of the utility model are as follows: when the device is in use, the sliding rod is first pulled to move the pointer to a predetermined scale value; the sliding rod is released to allow the impact piece to impact the surface of the test block, and the size of the impact pit formed on the surface of the test block is used to facilitate the user to judge the structural strength of the test block; based on this, the device can not only complete the task of detecting the surface of the test block, but also has a simple structure, easy use and easy carrying; in particular, the device can also remove stains on the surface of the test block and the concrete layer bonded to the surface of the test block. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0014] Figure 2 It is an exploded schematic diagram of the main structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the exploded structure of the starter of the utility model;

[0016] Figure 4 It is a schematic diagram of the exploded structure of the impact member of the utility model;

[0017] Figure 5 It is a schematic diagram of the state of the utility model when in use.

[0018] In the figure: 1. outer shell; 2. second slide groove; 3. impact member; 30. connecting part; 31. second slider; 32. pointer; 33. striker; 34. external threaded column; 4. scale; 5. starting member; 50. shell; 51. first slide groove; 52. second spring; 53. first slider; 54. tooth pin; 55. stop surface; 56. pull ring; 6. handle; 7. sliding rod; 8. tooth groove; 9. end cover; 10. first spring. DETAILED DESCRIPTION

[0019] Embodiments of the present utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present utility model, and should not be construed as limitations on the present utility model. In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "upper surface", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present utility model.

[0020] See also Figure 1-5 , the utility model provides an embodiment: a concrete test block surface strength detection device, comprising a shell 1 and a sliding rod 7 sliding on the shell 1; an impact piece 3 is also provided inside the shell 1, and the sliding rod 7 is connected to one end of the impact piece 3 after passing through a first spring 10; the upper end of the shell 1 is connected to an end cover 9, and a starting piece 5 is provided in the radial direction of the end cover 9; the starting piece 5 includes a shell 50, a tooth pin 54 is provided inside the shell 50, and the tooth pin 54 is connected with a tooth groove 8 provided on the sliding rod 7 through the matching connection, so as to fix the sliding rod 7 on the shell 1; after the tooth pin 54 is separated from the tooth groove 8, the sliding rod 7, under the action of the first spring 10, prompts the impact piece 3 to impact the surface of the concrete test block; a scale 4 for displaying the pressure value after the first spring 10 is compressed is also provided on the shell 1, and the impact piece 3 slides along the outer wall surface of the scale 4 through a pointer 32 provided.

[0021] In summary, when the device is used, first pull the sliding rod 7 to move the pointer 32 to the predetermined scale value; then release the sliding rod 7, at this time, the impact member 3 is prompted to impact the surface of the test block under the action of the spring 10; finally, the size of the impact pit formed on the surface of the test block is used to judge the structural strength of the test block; based on this, the device can not only complete the detection task of the test block surface, but also has a simple structure and is easy to use, especially easy to carry. Among them, the unit of the scale value on the scale 4 is: Newton (N). When the user needs to understand the structural strength of the test block surface, first pull the sliding rod 7 to drive the pointer 32 to move to the predetermined position on the scale 4, and then release the sliding rod 7 through the starter 5, so that the impact member 3 can hit the surface of the test block. Based on this, the impact of the impact member 3 on the surface of the test block can be used to preliminarily understand the structural strength of the test block surface, and the impact of the impact member 3 can also be used to remove stains on the surface of the test block and the concrete layer bonded to the surface of the test block.

[0022] Furthermore, since a first slide groove 51 is provided on the inner wall surface of the shell 50, and the tooth pin 54 slides with the first slide groove 51 through a first slider 53, it can be ensured that the tooth pin 54 can slide in a directional manner, thereby allowing the tooth pin 54 to smoothly engage with or separate from the tooth groove 8.

[0023] At the same time, since a second spring 52 is provided between the tooth pin 54 and the housing 50 , the second spring 52 can be used to enable the tooth pin 54 to be pressed tightly against the tooth groove 8 without the action of external force, thereby preventing the sliding rod 7 from automatically moving downward.

[0024] Furthermore, since the end of the tooth pin 54 facing the tooth groove 8 is also provided with a stop surface 55, when the stop surface 55 contacts the upper end surface of the tooth groove 8, the contact area between the two can be expanded to enhance the positioning ability of the tooth pin 54 on the sliding rod 7. At the same time, the side of the tooth pin 54 facing the housing 50 is connected to the pull ring 56, so that the user can pull the pull ring 56 to separate the tooth pin 54 from the tooth groove 8, simplifying the starting method of the starter 5.

[0025] On the basis of the above scheme, since the impact member 3 includes a connecting part 30 and a striker 33 movably mounted on the connecting part 30, the installation and replacement of the striker 33 are simple and convenient. Specifically, the external threaded column 34 provided on the striker 33 can be threadedly matched with the internal threaded hole provided on the end face of the connecting part 30 to realize the movable connection between the striker 33 and the connecting part 30.

[0026] Furthermore, since the side of the connecting portion 30 away from the striker 33 is slidably matched with the second slide groove 2 provided on the housing 1 through the second slider 31, the striker 3 will not have the problem of axial rotation when the sliding rod 7 is pulled upward or moved downward, thereby allowing the pointer 32 to slide stably and reliably on the scale 4.

[0027] At the same time, since a handle 6 is provided on the side of the housing 1, when the user holds the handle 6, he presses the handle 6 so that the end surface of the housing 1 can fit on the surface of the test block to avoid displacement of the housing 1 during impact.

[0028] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A concrete test block surface strength testing device, characterized in that: It comprises a housing (1) and a sliding rod (7) sliding on the housing (1); An impact member (3) is also provided inside the housing (1), and the sliding rod (7) is connected to one end of the impact member (3) after passing through a first spring (10); The upper end of the housing (1) is connected to an end cover (9), and a starter (5) is provided in the radial direction of the end cover (9); The starter (5) comprises a housing (50), wherein a tooth pin (54) is provided inside the housing (50), and the tooth pin (54) is adapted to be connected with a tooth groove (8) provided on the sliding rod (7) so as to fix the sliding rod (7) on the housing (1); After the tooth pin (54) is separated from the tooth groove (8), the sliding rod (7) causes the impact member (3) to impact the surface of the concrete test block under the action of the first spring (10); The housing (1) is also provided with a scale (4) for displaying the pressure value of the first spring (10) after being compressed, and the impact member (3) slides along the outer wall surface of the scale (4) through a pointer (32) provided thereon.

2. A concrete test block surface strength testing device according to claim 1, characterized in that: A first sliding groove (51) is also provided on the inner wall surface of the housing (50), and the tooth pin (54) is slidably matched with the first sliding groove (51) via a first sliding block (53).

3. A concrete test block surface strength testing device according to claim 2, characterized in that: A second spring (52) is also provided between the tooth pin (54) and the housing (50).

4. The surface strength testing device for concrete test blocks according to claim 1 is characterized in that: A stop surface (55) is also provided at one end of the tooth pin (54) facing the tooth groove (8), and a side of the tooth pin (54) facing the housing (50) is connected to a pull ring (56).

5. A concrete test block surface strength testing device according to any one of claims 1 to 4, characterized in that: The striking member (3) comprises a connecting portion (30) and a striking pin (33) movably mounted on the connecting portion (30).

6. A concrete test block surface strength testing device according to claim 5, characterized in that: A side of the connecting portion (30) away from the striker (33) is slidably matched with a second sliding groove (2) provided on the housing (1) via a second sliding block (31).

7. A concrete test block surface strength testing device according to claim 6, characterized in that: A handle (6) is also provided on the side of the housing (1).

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